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expand inherits helper child constructor creation, for clarity.

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Jeremy Ashkenas
2010-10-14 13:31:19 -04:00
parent 7c901e2245
commit 9c535ca5a5
1 changed files with 6 additions and 2 deletions
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8
backbone.js
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@@ -31,8 +31,12 @@
// Similar to `goog.inherits`, but uses a hash of prototype properties and
// class properties to be extended.
var inherits = function(parent, protoProps, classProps) {
var child = protoProps.hasOwnProperty('constructor') ? protoProps.constructor :
function(){ return parent.apply(this, arguments); };
var child;
if (protoProps.hasOwnProperty('constructor')) {
child = protoProps.constructor;
} else {
child = function(){ return parent.apply(this, arguments); };
}
var ctor = function(){};
ctor.prototype = parent.prototype;
child.prototype = new ctor();